Cisco Small Business RV Series Routers Management Interface Remote Command Execution and Denial of Service Vulnerabilities
Description
Multiple vulnerabilities in the web-based management interface of Cisco Small Business RV016, RV042, RV042G, RV082, RV320, and RV325 Routers could allow an authenticated, remote attacker to execute arbitrary code or cause an affected device to restart unexpectedly. These vulnerabilities are due to improper validation of user-supplied input in the web-based management interface. An attacker could exploit these vulnerabilities by sending crafted HTTP requests to an affected device. A successful exploit could allow the attacker to execute arbitrary code as the root user on the underlying operating system or cause the device to reload, resulting in a denial of service (DoS) condition. To exploit these vulnerabilities, an attacker would need to have valid administrator credentials on the affected device.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Cisco Small Business RV series routers contain multiple input validation flaws allowing authenticated remote code execution or denial of service.
Vulnerability
The web-based management interface of Cisco Small Business RV016, RV042, RV042G, RV082, RV320, and RV325 routers fails to properly validate user-supplied input. This allows an authenticated attacker to send crafted HTTP requests that trigger buffer overflows or other memory corruption. The vulnerabilities affect all firmware versions prior to the fixed releases mentioned in Cisco Security Advisory [1].
Exploitation
An attacker must have valid administrator credentials for the affected device. With those credentials, the attacker can send specially crafted HTTP requests to the web-based management interface. No additional user interaction is required beyond the initial authentication. The attacker can target any of the listed router models.
Impact
Successful exploitation can lead to arbitrary code execution as the root user on the underlying operating system, giving the attacker full control of the device. Alternatively, the attacker can cause the device to reload, resulting in a denial of service (DoS) condition. Both outcomes compromise the confidentiality, integrity, and availability of the router and the network it serves.
Mitigation
Cisco has released free software updates to address these vulnerabilities. Customers should upgrade to the fixed firmware versions specified in the Cisco Security Advisory [1]. No workarounds are available; the only mitigation is to apply the patch. Devices that are end-of-life may not receive updates, so replacement is recommended.
AI Insight generated on May 26, 2026. Synthesized from this CVE's description and the cited reference URLs; citations are validated against the source bundle.
Affected products
2- Range: n/a
Patches
0No patches discovered yet.
Vulnerability mechanics
AI mechanics synthesis has not run for this CVE yet.
References
1- tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-rv-overflow-ghZP68yjmitrevendor-advisoryx_refsource_CISCO
News mentions
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